Cheryl Cole and Beyonce 'in Joss Stone plot diaries'

Liverpool had also written a reminder to buy a hooded top, car insurance, a safe and open a bank account, Exeter Crown Court heard.

He wrote of "war", "warlord 1" and of "missions" to "rob" and "discipline".

In the diary - a daily appointment 2007 edition - each page was covered in handwritten scrawl, in either blue or black ink, with much of it crossed or scribbled out.

Detective Constable Katherine Joyner took the jury of 10 men and two women through the diary.

She said there were quite a few references to urban slang words, and that the notes included details of Miss Stone's date and place of birth and a biography of her musical career, including the albums she has released.

Liverpool and Bradshaw are charged with plotting to rob and kill Miss Stone, who they called a 'she-Devil', before dumping her decapitated body in a river in June 2011.

The defendants, both of St Stephen's Close, Manchester, deny charges of conspiracy to murder, conspiracy to cause grievous bodiily harm and conspiracy to rob.

The pair were arrested seven miles from her home in their battered Fiat Punto car with an arsenal of weapons, which included a Samurai sword, two knives, a hammer and a metal spike, the court heard.

The police also found a length of hosepipe, a black hooded top, a roll of black bags, black tape, black balaclava, maps and hand written notes.

Miss Stone gave evidence earlier this week when she said she did not turn on her alarm or lock her front door before this alleged incident happened.

The trial continues.